Sheet-metal oven



Get. 21, 1924. I 1,512,178

' H KIELBEIRG SHEET METAL OVEN Filed Oct. 11 1922 2 Sheets-Shem. l

H.v KIELBERG SHEET METAL OVEN 2 Sheets-Shes 2 Filed 0ct.. 11, 2

Patented Get. 21, 19241.

ATET oFFicE.

HENRY KIELBERG, OF MARTINS FERRY, OHIO, .ASSIGNOR TO WHITAKER-GLESSNERCOMPANY, OF WHEELING, WEST VIRGINIA, A CORPORATION OF WEST VIRGINIA.

SHEET-METAL OVEN.

Application filed October 11, 19-22. Serial No. 593,805.

ToaZZ whom it may concern:

Be it known that I, HENRY KIELBERG, a citizen of the United States ofAmerica, and resident of Martins Ferry, county of Belmont, and State ofOhio, have inventedcertain new and useful Improvements in Sheet- MetalOvens, of which the following is a specification. v

This invention relates broadly to sheet metal ovens, and morespecifically to an oven of the portable type designed for inlguntingupon stoves, hot plates and the The primary object of the invention isto provide a portable sheet metal oven of knock-down form composed'ofparts which may be quickly-and conveniently set up and knocked down asoccasion requires, which is strong, rigid and substantial when saidparts are properly assembled, and which when knocked down may beconveniently packed in relatively small compass either for storagepurposes or for shipment.

With these and other objects in view the invention resides in thefeatures of construction, arrangement ofv parts and combinations ofelements which will hereinafter be fully described, reference being hadto the accompanying drawings, in which Figure 1 is a frontvelevation ofthe invention with its parts fully assembled;

Figure 2 is an end elevation of the same; Figure 3 is a section on line33, of Fig. 1, showing the oven door in open position;

Figure 4: is an upper edge view of the oven casing in its collapsedform;

Figure 5 is a part'ial horizontal section on line 55, Fig. 2;

' Figure 6 is an enlarged fragmentary section taken on line 66, Fig. 3;and- Figure 7 is an enlarged fragmentary section taken substantially online 7-7, Fig. 2.

Referring to said drawings, 1 indicates the front wall and 2 the rearwall of a col- .lapsible sheet-metal casing which, inits extended form,is rectangular in shape. Said front wall 1 has each of its opposite endsturned rearward at a right angle to the plane of said wall, forming endportions 1 having substantial width. Likewise, end portions 2 are formedby turning the ends of the rear wall 2 forward at right engles to theplane of said Wall. A panel 3 of rectangular form interposed between theadjacent end portions l and 2 complements said portions in forming theends ofsaid casing, said panel being hinged at its front and rearvertical edges to said portions 1 and 2, respectively, as shown at 4 and5. Due to this hinged arrangement of the ends, thecasing is renderedfoldableto and from approximately the collapsed form shown in Fig. 3 ofthe drawings.

The lower edges of-the walls 1 and 2 are provided with narrow inturnedflanges 1" and 2", respectively, and the lower edges of the end panelsare likewise turned inward to form flanges 3 Said flanges serve-not onlyas foot portions upon which the casing stands, but also as supports'forthe edges of a rectangular bottom '6 which is insertible and removablethrough the top of said casing and which, when seated upon said flangesserves effectively to brace the lower part of the casing. Said bottomhas therein one or more large central openings 7 defined by anencircling stiffening flange 8, said opening or openings being adaptedto permit heat and flame to unobstructedlyenter the interior of thecasing from the burners of a stove (not shown) uponvvhich the casing isseated when in use. 1

Removably disposed against the inner face of the rear casing wall 2 is asheet-metal plate or shield 9, preferably corrugated-for stiffeningpurposes, whereby said rear wall is protected from the heat, said shieldhaving its lower edge resting upon the bottom 6'. The opposite ends ofvsaid'shield are turned forward and thence inward into hook-like form toprovide channels 10. Received in said channels are outwardly turnedflanges 11 formed on the rear vertical edges of plates 11 which serve toshield the end walls of the casing from heat, said shields .11 alsobeing preferably corrugated- The front edges of said shields 11 haveoutturned flanges 11 which seat against the end portions 1* closelyadjacent to the angles between said portions and the front wall 1,asshown in Fig. 5. I

A door 12 hinged at its lower edge to the wall 1 is normally disposed inupright closing relation to an opening 13 provided in said wall andthrough which access is had to the interior of the oven for theintroduction and removal of cooking vessels,

baking pans, and the like. Said door open- 1 able into and out oflocking relation to the interior face of the portion of the front wall-1- loca ted directly over the door opening 13, said members 16 beingcarried by the stem portions of-rotatable door-handles 17. Pivformed onthe door.

said member extends through a hole pro otally attached to the oppositelateral edge portions of the door are members 18 by which saiddoor isfirmly supported in its horizontal open position to form a shelflikesupport. Each of said members consists of a wire shaped to formanarcuately curved body and outerand inner end terminals 18 and 18respectively,'the terminal 18 being pivotally mounted in a loop-likekeeper 19 The curved body of vided therefor in the wall 1 adjacent tothe 'door and is movable through said hole in opening and closingmovements of the door. The inner terminal 18 is down-turned and ismovable to and from seated "relation to the wall 1 through a cut-outportion or recess 21 provided therefor in the adjacent flange 11 ofthe'adj'acent end shield 11.

Mounted upon the top of the casing is a cover, generally designated bythe reference character 22 by means of which the upper end of the casingwalls are heldin rigidly braced relation; Said cover comprises a topplate 22 having suitably attached'to the under side thereof a downwardlydished shield plate '22 which has a size and form for fitting closelywithin the embrace of said casing walls, as shown in Figs. 3 and 7. Saidcover is held in closely seated position by spring fingers 23 whichdepend from the under side of the cover and which are adapted to besprung into and out of apertures 24 provided therefor in the endpanels3. The said cover and the attaching means therefor constitute thesubject matter of a companion application, Serial No. 593,806, to whichreference is herein made for a complete description.

The lowermost rack 14 embodies means whereby heat and flame from theunderlying stove are prevented from coming into direct contact with pansor vessels mounted thereon; the specific structure involved beingdisclosed in a companion application, Serial No."593,8 0 7,- to whichreference may be had for a description thereof.

' "The oven "described is designed to be 'tangular casing having thewalls thereof in collapsible hinged relation, the front wall of saidcasing having a doorway therein, abottom removably mounted within thelower part of said casing in bracing relation to the walls of thelatter, shield plates removably mounted adjacent to the rear and endwalls of said casing, said end shield plates being disposed in bracingrelation to said rear shield plate, rack removably mounted with insaidcasing, and bracing said end shield plates, anda cover detachablymounted upon the top of said casing in bracing'relation to the walls ofthe latter.

2. A knock-down oven comprising a rectangular casing having the wallsthereof in collapsible hinged relation, the front wall of said casinghaving a doorway therein, said casing walls having inwardly directedflanges at their lower edges, a bottom seated upon said flanges inbracing relation to the casing walls, said bottom being insertiblethrough the interior of said casing from'the top of the latter, shieldplates removably mounted adjacent to the rear and end walls ofsaidcasing and slidable vertically to and from seated relation to saidbottom, said end shield plates being interengaged with and bracing saidrear hield plate,'racks slidable horizontally into and out of supportedbracing relation to said end shieldplates, and a cover detachably seatedupon said casing in bracing relation to the walls of the latter.

3. A knock-down oven comprising a rectangular casing having the wallsthereof in collapsible hinged relation, means 're'mov ably mountedwithin the lower part of said casing for bracing said casing walls,shield plates removably mounted within said casing adjacent to the endwalls of the "latter, means for bracing said plates in upright position,said plates having flanges whereby they are maintained at a spaceddistance from said end walls, the front casing wall through the frontcasing wall :adjacent to the end walls'of the casing and havingterminals for seating against said front wall, the

foremost flanges of said shield plates being recessed to permit passageof'saidterminals,

and a cover detachably seated upon said casing in bracing relation tothe walls of the latter.

4;. A knock-down oven comprising a rectangular casing having the Wallsthereof in collapsible hinged relation, a bottom removably mountedwithin the lower part of said casing for bracing said casing walls,shield plates remo-vably mounted within said cas- .ing adjacent tothe'end walls of the latter,

said plates having ledges formed thereon,

racks slidable to and from seated relation to ably mounted within thelower part of said casing for bracing said casing walls, shield platesremovably mounted within said'casing adjacent to the end walls of thelatter, a shield plate removably mounted adjacent to the rear Wall ofsaid casing and abutted and braced in place by said end plates, said endplates having ledges formed thereon, racks slidable to and from seatedrelation to said ledges and whereby said end plates are braced, and acover detachably seated upon said casing in bracing relation to thewalls of the latter.

In testimony whereof, I afiix my signature in presence of two subscribinwitnesses." HENRY ifiELBERG. Witnesses:

H. E. DUNLAP, M. T. MA IoN.

